Jev launches: a System One model for decisions
TypeSafe founder Diogo Almeida introduces Jev, its RLCD training method, and its focus on software decisions. The post includes a 2:56 launch video.

TypeSafe AI launched Jev, a System One model that reads program state and typed questions to return probabilistic answers in one pass—sub-second, cents per million tokens, with no prose, JSON parsing, or retries.
On Sept 15, TypeSafe AI launched Jev: a "System One model" that never writes a sentence. It reads your program state and a set of typed questions, then returns answers with probabilities in one pass. Sub-second. Cents per million tokens. No prose. No JSON parsing. No retries.